/Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponentsEditorOnly/Public/ToolTargets/StaticMeshComponentToolTarget.h
Configure active LOD to edit. Can only call this after Component is configured in baseUPrimitiveComponentToolTarget. If requested LOD does not exist, fall back to one that does.
virtual void SetEditingLOD ( EMeshLODIdentifier RequestedEditingLOD )